The Wholesale Super Store from Presentation Box & Display

Welcome to – Mailing Boxes & Shipping Supplies


Mason Box’s on-line store for all your MailMaster mailing boxes, universal sealing flap boxes, utility boxes, shipping supplies and medical/lab boxes. is the internet “superstore” for all of your mailing & shipping needs. We have everything you need for all of your mailing and shipping supplies.

For all on-line orders, offers:

  • Shipping within 24 hours
  • The highest quality
  • The lowest prices…Why Pay More!

Mailing Boxes: is your complete source for all your mailing box needs. We stock several styles of mailing boxes including the MailMaster mailing box, Universal Sealing Flap Box, Extra-Strength Utility Box and the Econochip Utility Box.

MailMaster Mailing Box: Features rounded reusable wire fasteners, and is ideal for Parcel Post, UPS, & Federal Express. No taping is required.

Universal Sealing Flap Box: Features four sealing flaps on the bottom for secure mailing. Eliminates wrapping, tying and taping. Tamper evident protection and meet U.S. Postal Service regulations for Registered Mail.

Extra-Strength Utility Boxes: Sturdy .044 gauge cardboard for extra strength and rigidity. Telescoping two-piece construction with thumb cuts for easy opening.

Econochip Utility Boxes: Ideal for storage or inner shipping cartons. Made with super-strength cardboard and reinforced-taped corners

Shipping Supplies:  

Bubble Bags: Self-sealing pouches for extra security

Jiffy Padded Shipping Bags: Ideal for shipping or storing repair parts, tools, books and more. Moisture-resistant exterior with built-in tear tape for easy opening.

Jiffylite Bubble Cushioned mailers: Recycled paper fiber with 3/16” thick barrier bubbles. Light weight, reusable mailers have puncture-resistant kraft exterior, with self-sealing adhesive strip that peels and seals.

Econokraft Corrugated Shipping Cartons: Strong 200 lb. test kraft corrugated boxes for shipping and storage. Made from recycled materials, and meets all applicable freight classifications and government specifications.

Reclosable Poly Bags: Minigrip 2 mil re-closable polyethylene bags. Dust, spill and moisture proof.   

Medical/Lab Boxes:

Medical Vial Mailing Boxes: Specially designed for safe secure transit of standard size medical vials.

Paraffin Block Storage Boxes: Sturdy low-cost corrugated construction protects tissue blocks and organizes specimens.